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<Title>Color Vertical Bar Meters</Title>
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<p class="heading0">ChartDirector 7.0 (Java Edition)</p>
<p class="heading1">Color Vertical Bar Meters</p>
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<img src="images/colorvbarmeter0.png" width='70' height='260'>&nbsp;&nbsp;<img src="images/colorvbarmeter1.png" width='70' height='260'>&nbsp;&nbsp;<img src="images/colorvbarmeter2.png" width='70' height='260'>&nbsp;&nbsp;<img src="images/colorvbarmeter3.png" width='70' height='260'>&nbsp;&nbsp;<img src="images/colorvbarmeter4.png" width='70' height='260'>&nbsp;&nbsp;<img src="images/colorvbarmeter5.png" width='70' height='260'>
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This example demonstrates horizontal bar meters in various colors, with different color scales, and with title and value readout.<br><br>
<a href="BaseMeter.addColorScale.htm">BaseMeter.addColorScale</a> is used to create the color scales in the meters. The color scales are created with various colors, end point positions and widths at the end points.<br><br>
The title and value readout are created as <a href="TextBox.htm">TextBox</a> objects using <a href="BaseChart.addTitle.htm">BaseChart.addTitle</a> and <a href="BaseChart.addTitle2.htm">BaseChart.addTitle2</a>, with the text box background set to the same color as that of the chart border.
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<p class="heading1a">Source Code Listing</p>
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<b>[JSP Version]</b> jspdemo/colorvbarmeter.jsp
<div class='codeblock'><code class='pre'>&lt;%@page import="ChartDirector.*, java.util.*" %&gt;
&lt;%!
// Function to create the demo charts
void createChart(WebChartViewer viewer, int chartIndex)
{
    // The value to display on the meter
    double value = 66.77;

    // The background, border and bar colors of the meters
    int[] bgColor = {0xcce4ff, 0xccffcc, 0xffdddd, 0xffffaa, 0xffccff, 0xeeeeee};
    int[] borderColor = {0x000088, 0x006600, 0x880000, 0xee6600, 0x6600aa, 0x666666};
    int[] barColor = {0x2299ff, 0x00ee00, 0xee4455, 0xff8800, 0x8833dd, 0x888888};

    // Create a LinearMeter object of size 70 x 260 pixels with a 3-pixel thick rounded frame
    LinearMeter m = new LinearMeter(70, 260, bgColor[chartIndex], borderColor[chartIndex]);
    m.setRoundedFrame(Chart.Transparent);
    m.setThickFrame(3);

    // Set the scale region top-left corner at (28, 33), with size of 20 x 194 pixels. The scale
    // labels are located on the left (default - implies vertical meter).
    m.setMeter(28, 33, 20, 194);

    // Set meter scale from 0 - 100, with a tick every 10 units
    m.setScale(0, 100, 10);

    // Demostrate different types of color scales
    double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
        0xff0000};
    double[] stepColorScale = {0, 0x33ff33, 50, 0xffff00, 80, 0xff3333, 100};
    double[] highLowColorScale = {0, 0x0000ff, 40, Chart.Transparent, 60, Chart.Transparent, 100,
        0xff0000};
    double[] highColorScale = {70, Chart.Transparent, 100, 0xff0000};
    double[] lowColorScale = {0, 0x0000ff, 30, Chart.Transparent};

    if (chartIndex == 0) {
        // Add a 6-pixel thick smooth color scale at x = 53 (right of meter scale)
        m.addColorScale(smoothColorScale, 53, 6);
    } else if (chartIndex == 1) {
        // Add a high only color scale at x = 52 (right of meter scale) with thickness varying from
        // 0 to 8
        m.addColorScale(highColorScale, 52, 0, 52, 8);
        // Add a low only color scale at x = 52 (right of meter scale) with thickness varying from 8
        // to 0
        m.addColorScale(lowColorScale, 52, 8, 52, 0);
    } else if (chartIndex == 2) {
        // Add a high only color scale at x = 52 (right of meter scale) with thickness varying from
        // 0 to 8
        m.addColorScale(highColorScale, 52, 0, 52, 8);
    } else if (chartIndex == 3) {
        // Add a smooth color scale at x = 52 (right of meter scale) with thickness varying from 0
        // to 8
        m.addColorScale(smoothColorScale, 52, 0, 52, 8);
    } else if (chartIndex == 4) {
        // Add a 6-pixel thick high/low color scale at x = 53 (right of meter scale)
        m.addColorScale(highLowColorScale, 53, 6);
    } else {
        // Add a 6-pixel thick step color scale at x = 53 (right of meter scale)
        m.addColorScale(stepColorScale, 53, 6);
    }

    // Add a bar from 0 to value with glass effect and 4 pixel rounded corners
    m.addBar(0, value, barColor[chartIndex], Chart.glassEffect(Chart.NormalGlare, Chart.Left), 4);

    // Add a title using white (0xffffff) 8pt Arial Bold font with a border color background
    m.addTitle("Temp C", "Arial Bold", 8, 0xffffff).setBackground(borderColor[chartIndex]);

    // Add a bottom title using white (0xffffff) 8pt Arial Bold font with a border color background
    // to display the value
    m.addTitle2(Chart.Bottom, m.formatValue(value, "2"), "Arial Bold", 8, 0xffffff).setBackground(
        borderColor[chartIndex]);

    // Output the chart
    viewer.setChart(m, Chart.SVG);
}
%&gt;
&lt;%
// This example includes 6 charts
WebChartViewer[] viewers = new WebChartViewer[6];
for (int i = 0; i &lt; viewers.length; ++i) {
    viewers[i] = new WebChartViewer(request, "chart" + i);
    createChart(viewers[i], i);
}
%&gt;
&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Color Vertical Bar Meters&lt;/title&gt;
    &lt;!-- Include ChartDirector Javascript Library to support chart interactions --&gt;
    &lt;script type="text/javascript" src="cdjcv.js"&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body style="margin:5px 0px 0px 5px"&gt;
    &lt;div style="font:bold 18pt verdana;"&gt;
        Color Vertical Bar Meters
    &lt;/div&gt;
    &lt;hr style="border:solid 1px #000080; background:#000080" /&gt;
    &lt;div style="font:10pt verdana; margin-bottom:1.5em"&gt;
        &lt;a href="viewsource.jsp?file=&lt;%=request.getServletPath()%&gt;"&gt;View Source Code&lt;/a&gt;
    &lt;/div&gt;
    &lt;!-- ****** Here are the chart images ****** --&gt;
    &lt;%
        for (int i = 0; i &lt; viewers.length; ++i) {
            out.write(viewers[i].renderHTML(response));
            out.write(" ");
        }
    %&gt;
&lt;/body&gt;
&lt;/html&gt;</code></div>
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